[ardrone2] merge remaining ardrone2 support

closes #396

conf/airframes/examples/quadshot_asp21_spektrum.xml

@@ -62,7 +62,7 @@ More information on the Quadshot can be found at transition-robotics.com -->
 
 <!-- Note that is better to have *no* caliberation file at all, than a one with incorrect caliberation values.
   The default factory values are most of the time perfectly acceptable, so by default we will not use the caliberation file -->
-  
+
   <section name="IMU" prefix="IMU_">
     <!-- Use default driver values for gyro -->
 
@@ -224,7 +224,7 @@ More information on the Quadshot can be found at transition-robotics.com -->
    <define name="TRANSITION_MAX_OFFSET" value="-82.0" unit="deg"/>
    <define name="RADIO_CONTROL_SPEKTRUM_SIGNS" value=" {1,1,-1,-1,1,-1,1,1,1,1,1,1}"/>
 
-   
+
    <define name="USE_AIRSPEED" value="TRUE"/>
    <define name="AIRSPEED_ETS_I2C_DEV" value="i2c2"/>
  </section>
@@ -237,7 +237,7 @@ More information on the Quadshot can be found at transition-robotics.com -->
 
  <modules main_freq="512">
    <load name="gps_ubx_ucenter.xml"/>
-   
+
    <!-- The the led_safety_status module will make the Quadshot LEDs blink in certain patterns when there are safety violations-->
    <load name="led_safety_status.xml">
          <define name="USE_LED_BODY" value="1"/>
@@ -263,7 +263,7 @@ More information on the Quadshot can be found at transition-robotics.com -->
 
  <!-- To use an airspeed sensor on I2C, enable I2C2-->
      <define name="USE_I2C2"/>
-    
+
     <!-- If using aspirin 2.2, make sure to uncomment the following barometer configuration: -->
 <!--       <configure name="LISA_M_BARO" value="BARO_MS5611_SPI"/> -->
     </target>
@@ -288,7 +288,7 @@ More information on the Quadshot can be found at transition-robotics.com -->
       <configure name="USE_MAGNETOMETER" value="0"/>
       <define name="AHRS_USE_GPS_HEADING" value="0"/>
     </subsystem>
-    
+
     <subsystem name="ins"/>
   </firmware>
 </airframe>